Capitalized Software (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Capitalized Software
Capitalized software costs	$ 80,732	$ 79,966
Less: accumulated amortization	41,353	41,633
Total	39,379	38,333
Capitalized software development costs	26,003	26,331	$ 22,579
Reduction in capitalized software costs and related accumulated amortization for fully amortized costs that are no longer in use	24,800
Capitalized software costs not subject to amortization	100	600
Amortization of capitalized software costs	$ 24,600	$ 25,800	$ 28,500